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Differences What are the advantages of each

Front view of Radeon HD 6850M

Reasons to consider the
AMD Radeon HD 6850M

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Better 3DMark 11 graphics score 9,336 vs 3,683.5 More than 2.5x better 3DMark 11 graphics score
Better 3DMark vantage graphics score 5,142 vs 999.5 Around 5.2x better 3DMark vantage graphics score
More memory 2,048 MB vs 512 MB 4x more memory
Better floating-point performance 920 GFLOPS vs 120 GFLOPS Around 7.8x better floating-point performance
Higher memory bandwidth 51.2 GB/s vs 25.6 GB/s 2x higher memory bandwidth
More shading units 800 vs 80 720 more shading units
More texture mapping units 40 vs 8 32 more texture mapping units
More compute units 10 vs 1 9 more compute units
More render output processors 16 vs 4 12 more render output processors
Higher texture rate 23 GTexel/s vs 6 GTexel/s More than 3.8x higher texture rate
Slightly higher pixel rate 9.2 GPixel/s vs 3 GPixel/s More than 3x higher pixel rate
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
Front view of Mobility Radeon HD 5470

Reasons to consider the
ATi Mobility Radeon HD 5470

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Higher clock speed 750 MHz vs 575 MHz More than 30% higher clock speed
Better 3DMark06 score 3,683.5 vs 1,469.5 More than 2.5x better 3DMark06 score
Higher effective memory clock speed 3,200 MHz vs 1,600 MHz 2x higher effective memory clock speed
Lower TDP 15W vs 50W 3.3x lower TDP

Benchmarks Real world tests of Radeon HD 6850M vs Mobility Radeon HD 5470

3DMark 11 Graphics Industry standard benchmark that tests DirectX 11 GPU performance

3DMark Vantage Graphics Industry standard benchmark that tests DirectX 10 GPU performance

3DMark06 Industry standard benchmark that tests DirectX 9 GPU performance

CLBenchmark Raytrace Measures compute performance using OpenCL to do raytracing

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